Read High and Low Side Together, with Superheat and Subcooling Ready
The LM120+ digital manifold reads high- and low-side pressure at once and controls refrigerant flow with dedicated valves and a sight glass. Add compatible wired temperature clamps, sold separately, for T1/T2 readings and SH/SC calculations.
- Dual Pressure Readings
- T1/T2 with Optional Clamps
- Superheat / Subcooling
- Vacuum & Pressure Hold
- Charging Assist
Key Features
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Simultaneous High/Low Pressure
Read both sides during A/C and refrigeration service work.
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Dual Temperature Inputs
Shows real-time T1 and T2 when compatible clamp probes are connected and fully seated on the pipes.
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Superheat and Subcooling
Calculated after you select the correct refrigerant and attach stable temperature probes.
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Relative-Vacuum Mode
Monitors pressure during an approved evacuation procedure, with leak time recording.
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Timed Pressure Retention
Shows initial and current pressure, ΔP and elapsed time for system-tightness checks.
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Charging Assistance
Use the valves, sight glass and selected refrigerant data within the equipment’s procedure.
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Handheld Construction
Engineering-plastic body with non-slip silicone, long-life valves and a foldable hook.
More Specifications
| Standard hose working pressure | 600 PSI (about 4.13 MPa) |
|---|---|
| Standard hose limit pressure | 3000 PSI (about 20.68 MPa) |
Model Comparison
| LM120 | LM120+ | LM150 | LM160 | |
|---|---|---|---|---|
| Focus | Core digital manifold | Three-color hose and clamp support | Larger refrigerant database | Program control, 8 languages |
| Temperature clamps | Confirm package | Supported, not included | Two shown in package | Two shown in package |
What’s in the Box
- LM120+ main unit
- Red, blue and yellow hose set
- Adapters and couplers (exact items depend on the package)
- Storage case
- User manual
How to Use
- Identify the refrigerantSelect the refrigerant confirmed by the vehicle or equipment information.
- Check kit and ratingsConfirm probes, batteries and the separate gauge, hose and system ratings.
- Inspect, zero and connectClose the valves, inspect fittings and hoses, choose refrigerant and units, zero if needed, then connect.
- Measure or serviceUse pressure, vacuum or retention mode; attach both clamps firmly for T1/T2 or SH/SC.
- Close and reviewFollow the manual’s valve and disconnect sequence and interpret results against the system specification.
Specifications, refrigerant filling, vacuum and leak testing: LM120 / LM120+ user manual (PDF)
Good to Know
Caution
- Temperature clamps are not included; T1/T2 and SH/SC need compatible wired clamps bought separately.
- Work within the lowest rating of the system, gauge and hose; the hose working pressure is lower than the gauge limit.
- Replace damaged hoses, seals and fittings before connecting.
- The gauge does not identify refrigerant or locate leaks; use a reliable identification and an approved leak-location method.
- Batteries may not be included; confirm for your order.
Care
- Wear protective equipment and work in a well-ventilated area.
- Keep the instrument away from hot, humid, flammable, explosive or strong-EMF environments, and do not modify its circuit.
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